7 electric motor – JLG R6 User Manual
Page 85

SECTION 5 - GENERAL SPECIFICATIONS AND MAINTENANCE
3121684
– JLG Lift –
5-25
774
SHORT CIRCUIT FIELD WIRING
The power module detected a problem in the
drive motors' power circuit wiring.
Refer problem to a qualified JLG mechanic.
775
OPEN CIRCUIT FIELD WIRING
The power module detected a problem in the
drive motors' power circuit wiring.
Refer problem to a qualified JLG mechanic.
776
STALLED PUMP MOTOR OR POWER
WIRING ERROR
The power module detected a problem in the
drive motors' power circuit wiring.
Refer problem to a qualified JLG mechanic.
777
OPEN CIRCUIT PUMP MOTOR WIRING
The power module detected a problem in the
drive motors' power circuit wiring.
Refer problem to a qualified JLG mechanic.
778
TRACTION T HIGH - CHECK POWER CIR-
CUITS
The power module detected a problem in the
drive motors' power circuit wiring.
Refer problem to a qualified JLG mechanic.
779
TRACTION T LOW - CHECK POWER CIR-
CUITS
The power module detected a problem in the
drive motors' power circuit wiring.
Refer problem to a qualified JLG mechanic.
7710 PUMP P HIGH - CHECK POWER CIRCUITS The power module detected a problem in the
drive motors' power circuit wiring.
Refer problem to a qualified JLG mechanic.
7711 PUMP P LOW - CHECK POWER CIRCUITS The power module detected a problem in the
drive motors' power circuit wiring.
Refer problem to a qualified JLG mechanic.
7741 ARMATURE BRAKING CURRENT TOO
HIGH
The power module has detected excessive
braking current.
This can be caused by transporting an excessive load on a steep grade.
7-7 Electric Motor
DTC
FAULT MESSAGE
DESCRIPTION
CHECK